A photovoltaic module structure and an installation method using the structure

Abstract

This invention discloses a photovoltaic module structure and an installation method using the structure, comprising: a photovoltaic component, the photovoltaic component including a bracket, a photovoltaic panel covering the bracket, the bottom of the bracket being hollow and having an inner bottom plate around its perimeter; a guide rail including a top plate that fits into the photovoltaic module, the top plate having slots on both sides; and a clamping assembly for clamping the inner bottom plate and the guide rail, the clamping assembly including a pressing member, a locking block, and a locking member that passes through and connects the pressing member and the locking block. The clamping assembly is provided at the connection between the side wall of the bottom of the photovoltaic panel and the top or middle of the guide rail, changing the installation from the top of the photovoltaic component to the bottom of the photovoltaic component, so that workers do not need to climb to the top of the mounting surface, but can complete the fixing between the photovoltaic component and the guide rail from the bottom of the mounting surface, thus improving safety performance.

Description

Technical Field

[0001] This invention relates to a photovoltaic installation structure, and more particularly to a photovoltaic module structure and an installation method using the structure. Background Technology

[0002] Photovoltaic modules generally refer to solar cell modules, which are composed of high-efficiency crystalline silicon solar cells, ultra-white textured tempered glass, EVA, transparent TPT backsheet, and aluminum alloy frame. They are characterized by long service life and strong mechanical resistance to external pressure.

[0003] The existing installation method for photovoltaic modules generally involves first laying several photovoltaic modules on the roof or mounting surface where they need to be installed, and then fixing them by manually locking the joints. This installation method inevitably requires workers to climb onto the mounting surface. In order to improve the light reception efficiency, photovoltaic modules are generally installed in a high position, which is relatively unsafe for workers to work on the mounting surface. When walking on the mounting surface, there will be shaking and other unstable phenomena, which is not conducive to safe construction. Summary of the Invention

[0004] This invention provides a photovoltaic module structure and an installation method using the structure, which can effectively solve the above-mentioned problems.

[0005] This invention is implemented as follows:

[0006] A photovoltaic module structure, comprising:

[0007] A photovoltaic component, comprising a support frame, a photovoltaic panel mounted on the support frame, the bottom of the support frame being hollow and having an inner bottom plate around its perimeter;

[0008] The guide rail includes a top plate that fits into the guide rail, and the top plate has slots on both sides;

[0009] A clamping assembly is used to clamp the inner bottom plate and the guide rail. The clamping assembly includes a pressing member, a locking block, and a locking member that passes through and connects the pressing member and the locking block.

[0010] As a further improvement, the crimping member includes a crimping portion, a connecting portion extending downward from the crimping portion, and a clamping portion disposed below the connecting portion and pointing towards one side of the locking block. The clamping portion abuts against the outer side of the locking block, and the connecting portion has a through hole for the locking member to pass through.

[0011] As a further improvement, the locking block includes a locking part, a locking part that mates with the slot, a pressing part that presses against the inner end of the locking part, and a pressing part that is connected to the pressing part and presses against the outer side of the guide rail. The inner side of the locking part is provided with a threaded connection hole that communicates with the through hole.

[0012] As a further improvement, the outer end of the pressing part is an outer inclined surface, and the inner end of the clamping part is an inner inclined surface that cooperates with the outer inclined surface of the pressing part.

[0013] As a further improvement, the inner side of the pressing part is provided with a friction texture structure.

[0014] As a further improvement, a baffle strip is provided at the midpoint of the top plate.

[0015] As a further improvement, a water guide groove is provided on both sides of the guide rail, and an installation groove extends outward along the water guide groove.

[0016] A method for installing a photovoltaic module structure, comprising the aforementioned photovoltaic module structure, wherein the specific installation steps include:

[0017] Step 1: Install the guide rails: Set up the guide rails on the roof of the building, and the guide rails serve as the longitudinal support beams of the roof;

[0018] Step 2: Install photovoltaic components: Install photovoltaic components between the guide rails, with the inner bottom plate of the bracket in the photovoltaic component fitting against the top surface of the guide rail;

[0019] Step 3: Install the fixing structure: Install the clamping component into the inside of the bracket, and press the photovoltaic element onto the guide rail from the inside from below.

[0020] The beneficial effects of this invention are:

[0021] This invention provides a clamping assembly at the top connection between the inner bottom plate of the photovoltaic panel and the guide rail, changing the installation location from the top of the photovoltaic component to the bottom. This eliminates the need for workers to climb to the top of the mounting surface; they can simply fix the photovoltaic component to the guide rail from the bottom, resulting in higher safety performance.

[0022] This invention uses an inward snapping method to snap the card block into the slot of the guide rail, while the outer side of the card block abuts against the pressing component. The pressing component presses against the card block and also presses against the inner bottom plate of the guide rail. Then, a locking part connects the pressing component and the card block, thereby completing the restriction and fixation of the pressing component on multiple surfaces. The various fixing points restrain each other to form a stable locking structure. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1This is a schematic diagram of the installation structure of a photovoltaic module provided by the present invention.

[0025] Figure 2 This is a top view of a photovoltaic module structure provided by the present invention.

[0026] Figure 3 This is the present invention. Figure 2 Cross-sectional view at point AA.

[0027] Figure 4 This is a structural schematic diagram of a guide rail, photovoltaic component, and clamping assembly provided by the present invention.

[0028] Figure 5 This is a diagram showing the fit between a clamping component and a guide rail provided by the present invention.

[0029] Figure 6 This is an exploded view of a clamping assembly provided by the present invention.

[0030] Figure 7 This is a three-dimensional structural diagram of a guide rail provided by the present invention.

[0031] Figure 8 This is a partial bottom view of a photovoltaic module structure provided by the present invention.

[0032] Figure 9 This is the present invention. Figure 8 A magnified view of region A in the middle. Detailed Implementation

[0033] All embodiments of the present invention are intended to fall within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating that the purpose, technical solution, and advantages of the method are clearer. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort indicate or imply the relative importance of the indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] Reference Figure 1-9 As shown, a photovoltaic module structure includes: a photovoltaic component 1, which includes a hollow support 12 and a photovoltaic panel 11 covering the support 12. The bottom of the support 12 includes an inner bottom plate 121; a guide rail 2, which includes a top plate 21 that fits against the inner bottom plate 121. The inner bottom plate 121 is mounted on the top plate 21, and the top plate 21 has downwardly extending and facing slots 211 on both sides; and a clamping assembly 3, which clamps the inner bottom plate 121 and the top plate 21. The clamping assembly 3 includes a horizontally placed pressing member 31 with its opening facing the inner bottom plate 121 and the guide rail 2, a locking block 32 abutting against the locking part 313 of the pressing member 31, and a locking member 33 that penetrates and connects the pressing member 31 and the locking block 32. The top end of the locking block 32 is engaged in the slot 211.

[0036] In some existing installation structures, the top installation method is often used. That is, workers need to climb to the installation surface where the photovoltaic component 1 has been erected and move around on the installation surface to lock the various connections through the locking structure. Even if auxiliary equipment such as mobile lifting vehicles are used, the installation surface is generally inclined and has a certain width and length. If the worker stands on the lifting vehicle, he / she still needs to bend over to install it. The installation is inconvenient and can easily cause dangerous situations.

[0037] The reason for this is that existing locking structures all require top mounting to secure the guide rail 2 to the photovoltaic element 1. However, in the above setup, a common bracket 12 is used. In this embodiment, the bracket 12 is a hollow rectangular frame. The photovoltaic panel 11 and glass structure are laid on top of the frame, and below the frame, refer to... Figure 2 An inner bottom plate 121 extends from the bottom of the frame and is attached to the top surface of the guide rail 2, thus completing the initial fit between the guide rail 2 and the bracket 12.

[0038] During installation, the worker first inserts the locking block 32 into the slot 211 of the guide rail 2. The slot 211 of the guide rail 2 has an arc-shaped structure, which fits precisely with the top of the locking block 32. The bottom of the locking block 32 abuts against the outer wall of the guide rail 2, thus securing the locking block 32 individually. On the outside of the locking block 32, a pressing piece 31 is pressed onto the locking block 32, providing external restraint. At the same time, the upper half of the pressing piece 31 presses against the inner bottom plate 121, completing the fit between the inner bottom plate 121 and the top plate 21 of the guide rail 2. Then, a locking piece 33 connects the locking block 32 and the pressing piece 31, limiting and fixing their positions, thus locking the inner bottom plate 121 and the top plate 21 of the guide rail 2 together. After installation, the photovoltaic element 1 with the inner bottom plate 121 is less prone to shaking, resulting in greater stability. The specific configuration of the pressing piece 31 that achieves this fixing structure is as follows:

[0039] The crimping member 31 includes a crimping portion 311 that fits against the top plate 21, a connecting portion 312 extending downward from the crimping portion 311, and a clamping portion 313 connected to the connecting portion 312 and pointing towards the guide rail 2. The clamping portion 313 abuts against the locking block 32. The connecting portion 312 has a through hole 314 for the locking member 33 to pass through. The entire crimping member 31 is roughly divided into three parts: the crimping portion 311 that applies pressure to the guide rail 2, the clamping portion 313 that applies pressure to the locking block 32, and the connecting portion 312 and the through hole 314 that connect to the locking member 33. Through the cooperation of the three positions in the crimping member 31, the mutual connection and restriction between the guide rail 2, the locking block 32, and the bracket 12 are completed.

[0040] In the processing of bracket 12, considering the difficulty of the process and cost, the inner bottom plate 121 of bracket 12 is flat. If only a simple flat pressure method is used, it may be easy for the photovoltaic component 1 to separate from the pressing component 3 under extreme weather conditions. Therefore, the pressing part 311 is inclined to the side of the guide rail 2. The distance between the pressing part 311 and the top plate 21 is the thickness of the inner bottom plate 121. Several friction grooves are opened on the inner side of the pressing part 311. First, by setting it to be inclined to the guide rail 2, the pressing part 311 has a better pressing effect on the inner bottom plate 121. Second, by friction fixing with the inner bottom plate 121 through the friction grooves, the friction coefficient between the two is increased. Even when the bracket 12 or the guide rail 2 is vibrated, there is a biting force between the two, and it is not easy for the phenomenon of separation or deviation to occur.

[0041] Furthermore, if the top plate 21 of the guide rail 2 is inclined, the inner bottom plate 121 can also be set as inclined according to the change of its shape and structure. The two have the highest degree of fit when they are parallel and the clamping and fixing effect is the best.

[0042] At the contact position between the crimping member 31 and the locking block 32, a mating surface 315 is provided on the side of the locking part 313 pointing towards the guide rail 2. The mating surface 315 abuts against a contact surface 323 of the locking block 32. (Refer to...) Figures 2-3 The mating surface 315 of the pressing part 313 is an inclined surface, and the contact surface 323 of the locking block 32 is also an inclined surface. The mating surface 315 of the pressing part 313 is used to support the contact surface 323 of the locking block 32, so that the lower end of the locking block 32 is supported. At this point, the upper end of the locking block 32 is engaged in the slot 211, the lower end is supported by the pressure edge, and the inner side abuts against the outer side of the guide rail 2, realizing multi-point fixation. It should be particularly emphasized that the inclined surface area of ​​the mating surface 315 of the pressing part 313 is not less than the inclined surface area of ​​the contact surface 323 of the locking block 32, so as to ensure that the pressing part 313... The supporting force of the mating surface 315 on the contact surface 323 of the card block 32 is such that the bottom edge of the mating surface 315 is at least parallel to the bottom edge of the contact surface 323, or the height of the bottom edge of the mating surface 315 is lower than the bottom edge of the contact surface 323, so as to ensure the stability of the supporting effect. If the inclined area of ​​the mating surface 315 of the pressing part 313 is smaller than the inclined area of ​​the contact surface 323 of the card block 32, or the bottom edge of the mating surface 315 is higher than the bottom edge of the contact surface 323, then the two are not completely in contact, and they are prone to swinging when affected by external factors, which may easily lead to accidents in severe cases.

[0043] The specific configuration of the locking block 32 is as follows: the locking block 32 includes a locking part 325 parallel to the connecting part 312, a threaded connection hole 322 opened inside the locking part 325 and coaxial with the through hole, a locking part 321 disposed on the locking part 325 and locked in the slot 211, a pressing part disposed below the locking part 325 and abutting against the mating surface 315, and a pressing part 324 away from the pressing part and pressing against the outer side of the guide rail 2. The locking part 321 and the slot 211 are engaged in a locking state, and can be fixed even without external pressure. This makes it easy to fix during installation and not easy to detach when subjected to collision. The pressing part 324 on the same side of the locking part 321 also needs to abut against the outer side of the guide rail 2 to ensure that the entire locking block 32 is subjected to uniform force.

[0044] The connection structure between the connecting block 32 and the pressing member 31 is a locking member 33. In this embodiment, the locking member 33 is a bolt, which passes through the through hole 314 of the pressing member 31 and the threaded connection hole 322 of the connecting block 32, connecting the two together to make the entire pressing assembly 3 reach a stable state. In this embodiment, the inner side of the threaded connection hole 322 is provided with threads, which can provide a limiting force for the bolt to lock. In other embodiments, a nut can also be provided on the side of the threaded connection hole 322 near the guide rail 2 to provide a limiting force on the locking member 33 from the inside of the connecting block 32. In another embodiment, a pin or other fastener can also be used. It is only necessary to provide a limiting force on the side of the threaded connection hole 322 near the guide rail 2 to achieve the effect of connecting and fixing the connecting block 32 and the pressing member 31.

[0045] To improve the tightening force and stability of the bolt, a washer 34 is provided between the locking member 33 and the through hole 314.

[0046] On both sides above the top plate 21 of the guide rail 2, photovoltaic components 1 are fixed. If there is no separator in the middle, the photovoltaic components 1 will collide directly with each other, and the restraining force between each position is insufficient. The bracket 12 of the photovoltaic component 1 is prone to deformation. Therefore, a separator post 22 protrudes upward from the midpoint of the top plate 21. The separator post 22 is an inverted U-shaped structure. Photovoltaic components 1 are respectively set at both ends of the separator post 22. The separator post 22 is extended directly upward from the midpoint of the top plate 21 during the processing of the guide rail 2, and is an integral structure with the guide rail 2. It is more stable than welding later.

[0047] With the partition column 22 present, the outer side of the entire photovoltaic element 1 is tightly attached to the partition column 22, while the inner side is tightly held against the bracket 12 of the photovoltaic panel 11 by the pressing part 311 of the pressing member 31, thus fixing the inner and outer sides and enhancing the stability of the photovoltaic element 1.

[0048] Furthermore, since the partition column 22 has an inverted U-shaped structure, when water flows into the space between the two photovoltaic panels 11, it can be diverted to both sides along the inverted U-shaped structure. In order to deal with the phenomenon of rainwater or other water flowing in, the guide rail 2 is further provided with longitudinal water guide grooves 23 welded to the lower half of the guide rail 2 and extending outward along the setting direction of the photovoltaic panels 11, and mounting grooves 24 extending outward along the longitudinal water guide grooves 23. The guide rail 2 is fixed to the external connection part through the mounting grooves 24, so that all the water flowing into the gap between the photovoltaic panels 11 can be discharged through the longitudinal water guide grooves, and the mounting grooves 24 can be used to install the entire photovoltaic module in various environments with various fasteners.

[0049] A method for installing a photovoltaic module structure, comprising the photovoltaic module structure described above, wherein the installation method specifically includes:

[0050] S1; A locking block 32 is engaged below the slot 211 of the guide rail 2, and the inner side of the locking block 32 abuts against the outer side of the guide rail 2.

[0051] S2; Photovoltaic components 1 are laid on both sides of the top of the guide rail 2, and the inner bottom plate 121 of the photovoltaic component 1 is parallel to the contact surface of the guide rail 2.

[0052] S3; The upper part of the pressing member 31 is pressed against the inner wall of the inner bottom plate 121, while the lower part of the pressing member 31 is pressed against the outer wall of the locking block 32.

[0053] S4; The locking member 33 passes through the locking press member 31 and the locking block 32.

[0054] In the above-described installation method, the photovoltaic component 1 is installed at the top of the guide rail 2. In other embodiments, the guide rail 2 can be in the shape of an existing I-beam, with the photovoltaic component 1 arranged on both sides of the guide rail 2. The inner bottom plate 121 of the photovoltaic component 1 is parallel to the lower support plate of the guide rail 2 that supports the photovoltaic component 1. The lower support plate of the guide rail 2 is also provided with a slot 211, which also adopts the above-described installation method. The difference is that the photovoltaic component 1 is installed on the side of the middle position of the guide rail 2. Two assembly methods can be selected according to the actual installation environment, and the installation method and the selection of the guide rail 2 are more flexible.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A photovoltaic module structure, characterized in that, include: Photovoltaic component (1), the photovoltaic component (1) includes a bracket (12) and a photovoltaic panel (11) covered on the bracket (12). The bottom of the bracket (12) is hollow and an inner bottom plate (121) is provided around it. The guide rail (2) includes a top plate (21) that fits against the inner bottom plate (121), and the top plate (21) has slots (211) on both sides; The clamping assembly (3) is used to clamp the inner bottom plate (121) and the guide rail (2). The clamping assembly (3) includes a crimping member (31), a locking block (32), and a locking member (33) that passes through and connects the crimping member (31) and the locking block (32). The crimping member (31) includes a crimping part (311), a connecting part (312) extending downward from the crimping part (311), and a clamping part (313) disposed below the connecting part (312) and pointing towards the side of the locking block (32). The clamping part (313) presses against the outside of the locking block (32). The connecting part (312) has a through hole (314) for the locking member (33) to pass through. The locking block (32) includes a locking part (325), a locking part (321) that cooperates with the locking groove (211), a pressing part (323) that presses against the inner end of the locking part (313), and a pressing part (324) that is connected to the pressing part (323) and presses against the outer side of the guide rail (2). The inner side of the locking part (325) is provided with a threaded connection hole (322) that communicates with the through hole (314). The outer end of the pressing part (323) is an outer inclined surface, and the inner end of the clamping part (313) is an inner inclined surface that cooperates with the outer inclined surface of the pressing part (323).

2. The photovoltaic module structure according to claim 1, characterized in that, The inner side of the pressing part (311) is provided with a friction texture structure.

3. A photovoltaic module structure according to claim 1, characterized in that, A baffle strip (22) is provided at the midpoint of the top plate (21).

4. A photovoltaic module structure according to claim 1, characterized in that, The guide rail (2) is also provided with a water guide groove (23) on both sides, and an installation groove (24) extending outward along the water guide groove (23).

5. A method for installing a photovoltaic module structure, comprising the photovoltaic module structure described in any one of claims 1-4, characterized in that, The specific installation steps include: Step 1: Install guide rail (2): Set up guide rail (2) on the roof of the building. Guide rail (2) serves as the longitudinal support beam of the roof. Step 2: Install photovoltaic components (1): Install photovoltaic components (1) between guide rails (2) and guide rails (2), with the inner bottom plate (121) of the bracket (12) in photovoltaic components (1) fitting against the top surface of the guide rail (2); Step 3: Install the fixing structure: Install the clamping component (3) into the inside of the bracket (12), and press the photovoltaic element (1) onto the guide rail (2) from the inside from below.

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